12491416 has 16 divisors (see below), whose sum is σ = 26767440. Its totient is φ = 5353440.

The previous prime is 12491399. The next prime is 12491443. The reversal of 12491416 is 61419421.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111475 + ... + 111586.

It is an arithmetic number, because the mean of its divisors is an integer number (1672965).

Almost surely, 2^12491416 is an apocalyptic number.

It is an amenable number.

12491416 is an abundant number, since it is smaller than the sum of its proper divisors (14276024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12491416 is a wasteful number, since it uses less digits than its factorization.

12491416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223074 (or 223070 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 12491416 is about 3534.3197365264. The cubic root of 12491416 is about 232.0263049840.

The spelling of 12491416 in words is "twelve million, four hundred ninety-one thousand, four hundred sixteen".